In the single most comprehensive hands-on side-by-side analysis, We Get Around Blog Guest Columnist, Paul Collart, includes a chart where he compares his experience with these five platforms, in these categories:

If you are thinking about buying a 3D Tour solution, or wondering if other solutions are a threat or an opportunity to the 3D Tour solution that you are using now, Paul's analysis is likely to save you days - even weeks - worth of research.

@pcollart Thank you for the comparison! I am still partial to Matterport for 3 main reason and many more sub-reasons. The three main reasons are the Dollhouse View, Mattertags, and the user experience during the viewing.